Hand or pointer remover



Oc`t. 9, 1945. v. v. VAUGHAN 2,386,370

HAND oR POINTER REMovER Filed Jan. 6, 1944 lllll'll 1,1,111'1/ ATTDRNEYB Patented Oct. 9, 1945 y oFFIcE I HAND on PonyrER. nEMovER n VernonV. Vaughan, Norfolk, Va. Application January 6, 1944,` Serial o.51,7,253

(o1. si6) 3 Claims.

This invention relates to a pulling tool for use by clock makers andothers doing similar work upon instruments having hands or pointers andit is one object of the invention to provide a tool by means of whichthe hands of a clock or watch -v or the. pointer of a gauge or similarinstrument may be removed from the shaft carrying the same withoutbending the hands or the pointer.

Another object of the invention is to provide a puller of such formationthat it may be held in a persons hand and actuated by squeezing pressureapplied to a handle and a lever constituting elements of the puller.

Another object of the invention is to provide a tool of this characterwherein jaws are pivoted to theV lower end of a plunger and movedtowards a gripping position by action of a collet about the lower end ofa barrel in which the plunger is mounted when the plunger is shiftedupwardly through the barrel by pressure applied to a plunger-operatinglever.

Another object of the invention is to provide a pulling tool wherein theplunger is yieldably held against upward movement by a springsurrounding the plunger within the barrel housing the plunger and thejaws urged towards a releasing or inoperative position by a spring inthe 'lower portion of the plunger.

Another object of the invention is to so form the barrel and the colletsthat a set of collets of various sizes may be provided and selectivelyapplied to the lower end of the barrel as needed.

Another object of the invention is to provide a puller which is simplein construction, easy to operate and capable of being quickly takenapart for cleaning or repairs and reassembled.

'Ihe invention is illustrated in the accompanying drawing wherein:

Figure 1 is a side elevation of the improved puller.

Figure 2 is a top View thereof.

Figure 3 is a sectional view taken along line A 3-3 of Figure 2.

Figure 4 is a sectional view taken at right angles to Figure 3 alongline 4-4 of Figurel.

Figure 5 is a top plan view of a collet or sleeve constituting anelement of the puller.

Figure 6 is a sectional view taken along line '6-6 of Figure 5.

A`extending slot I 3' and bored tending lower end I6. across the upperend of the slot I5 at the front barrel I formed of strong metal andformed with a bore 2 which is of even diameter for the lmajor portion ofits length but has its upper end lportion 3 of reduced diameter to forman annular shoulder- 4 and an inwardly thickened upper portion for thebarrel diametrically across which a slot 5 is formed in the upper end ofthe barrel. The lower portion 6 of the barrel is externally thickenedand this thickened lower portion defines a circumferentially extendingshoulder l spaced upwardly from the lower end of the barrel. A lug 8extends radially from the barrel above the thickened portion G'thereofand is of ysuch diameter that it will fit tightly into the hol- ,lowneck 9 of a handle Ill. Therefore, the handle will Vbelrmly, held to thebarrel but may be detached therefrom when so desired.

A piston or plunger II is slidably received in the vbarrel and has itslower portion of increased diameter to form a head I2 which is formedacross lits lower `end portion with a diametrically longitudinally toform a socket Ill. .The plunger is of greater length than the barrel andits upper portion is formed with a slot I5 having a diagonally ex- Across-bar I 'I extends thereof, and referring to Figure 3 it will beseen that this cross-bar has a transversely rounded lower edge face I8.A spring I9 yieldably resists upward movement of the plunger and iscoiled 'about the plunger within the barrel with its upper' end bearingagainst the shoulder 4 and its 'lower end resting upon the shoulder 20at the upper end of the head I2 vof the plunger.

In order to engage and grasp the hands of a clock or the pointer of agauge or similar instrument there has been provided jaws 2I which twithin the slot I3 and are pivotally mounted by a pin 22 which passesthrough the jaws and has its end portions engaged in openings formed rinthe plunger near the lower end thereof. These jaws have wide feet orhooks 23 at their lower -ends so that when the jaws Vare swung towardseach other they may have good engagement under the hands or pointer andcause the hands or pointer to be easily lifted off the shaft carryingthe same. Upper end portions of the jaws are tapered to form camportions 24 between which is disposed a pin 25--which is engaged withthe lower end of spring 26 housed in the socket I4. This spring exertsdownward pressure upon the pin and the cam members 24 will thus be urgedaway from each other and the jaws swung to opened or inoperativeposition. Since ends of the pin 22 are exposed through slots 21 formedin the lower end portion of thebarrel, the pin may be removed to releasethe jaws and other jaws substituted.

Movement of the jaws towards each other is eiected by upward movement ofthe plunger and in order to shift the plunger upwardly there has beenprovided a lever 28 which is disposed over the handle I and has itsfront end downwardly thickened to flor-m -a foot 29, Vformed with astraight loweredge. The lower f-edge :portion of the foot ts snugly inthe slot I at the upper end of the plunger and also in the slot 5 at theupper end of the barrel. The foot tapers towards y its iront end andnear its front Vend is formed a substantially circular opening or recess30 having a flaring throat 3l through whiehjthe crossbar i8 is passedinto the recess '30; Since the recess is circular and the under surfaceof the cross-bar is curved transversely, the cross-bar rrniy havesliding movement oircumfe'rentially of :the *recess without`scratclrin'g or binding w-hen `'pressure applied to the `lever Fby thethumb Yof afhand lg'rasping `'the handle I0 and the lever. Asfthelever'is forced towards the handle by pressure -the plunger `is 'shiftedupwardly'andby tiltling the `-lever until the ldiagonally extending facen "32 ol' the shoe rests upon the vupper end of the haft-rel, theplunger Vwill be held 'in a raised position.

buring upward movement of the plunger a sleeve kcir-collet 3`3 `carriedby the lowerend portion of the barrel exerts -cam action lupon the jaws'to force them towards 'each Jother to an op'- verative for -'grippingposition. This Acollet lits 'about the barrel with its upper end bearingagainst shoulder 1 and the upper portion 'of the collet jis'iormed'with' slits 34'so that it may be "eXpandedslight-ly as it is appliedand Lhave `frio- |tional grip Aabout the `barrel and Abe firmly butremovably l*held in place. The ilower portion 'of theeollet is kformed'withslots 35 'at Vrightan'gles Y`to the slits 34 'and below theslltsthecollet is internally thickenedto'form shoulders 36 engagv'ingthe lowered'ge ofthe barrel and'also providing the collet 'with alowerp'or'tion of predeter- 'Inined'internal diameter. Bysoormingthe'colle'tits cam 'action upon the jaws may be conlarged toform camming elements, a spring in the socket disposed between theenlarged camming upper portions of the jaws and urging the jaws awayfrom each other to opened position, a sleeve fitting about the lowerportion of the barrel and thickened at its lower end to form shouldersengaging the jaws to force the jawsrecess leading from its upper edgeand through winch the cross-bar passes to operatively connect the leverwith the plunger.

Vtrailedandthe jaws caused to Abe moved towards V a lose'd position adesired extentl when lthe vpluhgeris shifted upwardly. By removing acollet .in use and substituting another having a lower portioniofdi'erent internal diameter the exltent lto which 'the ljaws close may bevaried.

Whenthe 'lever is released Ythe spring i9 shifts `the plunger.downwardly andthe spring 26 eauses th'e-jawsto be swung to openedposition.

`Having thus described `the invention, what is claimed is:

l. AVhand-removing tool comprising a-barrel, a 4plunger :slidablelongitudinally through the fbar- .rel,an enlarged head on the lower end-of the plunger, across-bar at the top end of the plunger,

a Uspringinethe barrel `coiled'about the plunger and bearing against thebarrel and head of the plunger for urging the plunger downwardly, saidgplunger-havingits lower 4end portion formed with a-transverse'slotandwith a longitudinal socket, jawsfpivotallymounted in the lower end ofsaid plunger and projecting downwardly from :the plunger the upperportions of 'the jaws beingeng2. A handaemoving tool comprising a barrelvheaving zan outstanding annular shoulder about its lower portion, asleeve removably fitting about the ilower portion oi the lbarrel withiits iupper 'end vabutting said shoulder, ithe lower `'portion oftlresfleeve -`being internally `'thickened to provide "apredeterniined'internal diafrn'eter, ia lplunger sldable longitudinally in said'barreland""llaving its lower "portion Iformed with 'a transverse slot kand a'lon'.f'itudinal socket Aextending upwardly from the slot, a spring 'insaid socket, jaws pivota'lly mounted in lsaid slot and `extendingdownwardly outof the sleeve,"said jaws havingdiverg- 'ing thickenedupper portions forming camming surfaces, 'a pin `'at the lowerjend 4ofsaidispririg disposed between the camming Jsurfaces `the 'dii/ergingupper portions of the'jaws and urging tlrepj'a-ws apart 'by pressurefof"the spring, said sleeve having its lower Aedge 'engaging outer "sideedges 'ofthefjaws 'for forcing the `jaws towards each other to agripping position Awhen the 'plunger is "shifted upwardlyya Aspringabout the plunger `for 'urging the plunger Ad'ov'vnwardly, 'and a leverpassing through an-openingiin `the plunger abovethe'barreland engagingthe same forgmovnigjthe plunger,'upwardly within the barrel.

3, n hand-removing tool 'comprisingja barrel, ja `sleeve about thelower' en'dfof the barrel said barrel having a relativelythic'ktopportion with a transverse slot, a 'plunger slidable longitudinally insaidbarrelgjawspivoted 'to said plunger andextending downwardly fromtheplunger and out oftheV sleeve, cam .portions at upper ends of said`iaws,`a sp1-'ing 'carriedY by 'said Vplunger and acting 'upon the camportions` 'for urging 'the jaws Vaway from each .other to openedposition, ,said 'sleeve engaging the jaws and forcing the jaws towards'each 4other when "the vplunger is shiited'lu'pwardly, the ilpper end`portion oT the plunger being 'formed with Aa liametrioallyillskposed,longitudinallyextending .slt above thebarrel and Mforming across-bar across the upper-end of the plunger, a handle carriedby andextending transversely f-r'dn 'said barrel, and a lever l'for shiftingthe plunger upwardly 'having-a t'apered iront Yportion resting uponvtheupper'fend of the barrel .and .passing-through .the slot of theVpllun'ger .below .the crossbar-,and 'formed with a substantiallycircular-recess through which `the Across- -bar passes, .said recessYhaving a flaring mouth leading from the upper edge of-Lt'he .lever.forin- .troduction ofhthe crossbar into the recess,v

v. VAUGHAN.

